3895223993 has 2 divisors, whose sum is σ = 3895223994. Its totient is φ = 3895223992.

The previous prime is 3895223989. The next prime is 3895223999. The reversal of 3895223993 is 3993225983.

It is a happy number.

3895223993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3453677824 + 441546169 = 58768^2 + 21013^2 .

It is a cyclic number.

It is not a de Polignac number, because 3895223993 - 2² = 3895223989 is a prime.

It is not a weakly prime, because it can be changed into another prime (3895223999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1947611996 + 1947611997.

It is an arithmetic number, because the mean of its divisors is an integer number (1947611997).

Almost surely, 2^3895223993 is an apocalyptic number.

It is an amenable number.

3895223993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3895223993 is an equidigital number, since it uses as much as digits as its factorization.

3895223993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3149280, while the sum is 53.

The square root of 3895223993 is about 62411.7296107070. The cubic root of 3895223993 is about 1573.4181134840.

The spelling of 3895223993 in words is "three billion, eight hundred ninety-five million, two hundred twenty-three thousand, nine hundred ninety-three".